Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
LEED Study of the Structure of the Pt3Ti(510) Stepped Single Crystal Surface
Abstract Binary intermetallic titanium-platinum compounds have been object of interest in view of their catalytic activity /1/. In previous papers /2-4/, we reported results of studies on the properties of single crystal Pt3Ti low index surfaces. However, surface defects often play an important role in the catalytic and adsorptive properties of surfaces /5/. Therefore we extended our studies to a single crystal Pt3Ti surface which was cut along a vicinal plane in order to form a regular array of surface steps. Stepped surfaces of single crystal pure metals have been extensively studied by LEED /5/. However, to our knowledge, no study of the stepped surface of a bimetallic compound has been reported in the literature so far. For pure platinum, ordered steps were reported to be unstable for the (510) oriented surface /6/. However, we found that an ordered array of surface steps can be formed on the Pt3Ti surface with the same orientation.
LEED Study of the Structure of the Pt3Ti(510) Stepped Single Crystal Surface
Abstract Binary intermetallic titanium-platinum compounds have been object of interest in view of their catalytic activity /1/. In previous papers /2-4/, we reported results of studies on the properties of single crystal Pt3Ti low index surfaces. However, surface defects often play an important role in the catalytic and adsorptive properties of surfaces /5/. Therefore we extended our studies to a single crystal Pt3Ti surface which was cut along a vicinal plane in order to form a regular array of surface steps. Stepped surfaces of single crystal pure metals have been extensively studied by LEED /5/. However, to our knowledge, no study of the stepped surface of a bimetallic compound has been reported in the literature so far. For pure platinum, ordered steps were reported to be unstable for the (510) oriented surface /6/. However, we found that an ordered array of surface steps can be formed on the Pt3Ti surface with the same orientation.
LEED Study of the Structure of the Pt3Ti(510) Stepped Single Crystal Surface
Bardi, U. (Autor:in) / Santucci, A. (Autor:in) / Rovida, G. (Autor:in) / Ross, P. N. (Autor:in)
01.01.1988
5 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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